feat(helper): distinguish current participant visibility

cai

2026-08-12 4c14ddfeb8964d09b83f14ce7629e42863fa67ce

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[source.crates-io]
replace-with = "rsproxy"
 
[source.rsproxy]
registry = "sparse+https://rsproxy.cn/index/"
 
[net]
retry = 5